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1# Copyright 1999-2004 Gentoo Foundation 1# Copyright 1999-2011 Gentoo Foundation
2# Distributed under the terms of the GNU General Public License v2 2# Distributed under the terms of the GNU General Public License v2
3# $Header: /var/cvsroot/gentoo-x86/eclass/ghc-package.eclass,v 1.2 2004/11/03 20:38:35 kosmikus Exp $ 3# $Header: /var/cvsroot/gentoo-x86/eclass/ghc-package.eclass,v 1.30 2011/05/08 15:00:43 slyfox Exp $
4# 4#
5# Author: Andres Loeh <kosmikus@gentoo.org> 5# @ECLASS: ghc-package.eclass
6# @MAINTAINER:
7# "Gentoo's Haskell Language team" <haskell@gentoo.org>
6# 8#
9# Original Author: Andres Loeh <kosmikus@gentoo.org>
10#
7# This eclass helps with the Glasgow Haskell Compiler's package 11# @BLURB: This eclass helps with the Glasgow Haskell Compiler's package configuration utility.
8# configuration utility. 12# @DESCRIPTION:
13# Helper eclass to handle ghc installation/upgrade/deinstallation process.
9 14
10ECLASS="ghc-package" 15inherit versionator
11INHERITED="$INHERITED $ECLASS"
12 16
13PATH="${PATH}:/opt/ghc/bin" 17# @FUNCTION: ghc-getghc
14 18# @DESCRIPTION:
15# for later configuration using environment variables/
16# returns the name of the ghc executable 19# returns the name of the ghc executable
17ghc-getghc() { 20ghc-getghc() {
18 echo "ghc" 21 type -P ghc
19} 22}
20 23
24# @FUNCTION: ghc-getghcpkg
25# @DESCRIPTION:
21# returns the name of the ghc-pkg executable 26# Internal function determines returns the name of the ghc-pkg executable
22ghc-getghcpkg() { 27ghc-getghcpkg() {
23 echo "ghc-pkg" 28 type -P ghc-pkg
24} 29}
25 30
31# @FUNCTION: ghc-getghcpkgbin
32# @DESCRIPTION:
26# returns the name of the ghc-pkg binary (ghc-pkg 33# returns the name of the ghc-pkg binary (ghc-pkg
27# itself usually is a shell script, and we have to 34# itself usually is a shell script, and we have to
28# bypass the script under certain circumstances) 35# bypass the script under certain circumstances);
36# for Cabal, we add an empty global package config file,
37# because for some reason the global package file
38# must be specified
29ghc-getghcpkgbin() { 39ghc-getghcpkgbin() {
40 if version_is_at_least "6.10" "$(ghc-version)"; then
41 # the ghc-pkg executable changed name in ghc 6.10, as it no longer needs
42 # the wrapper script with the static flags
43 echo '[]' > "${T}/empty.conf"
44 echo "$(ghc-libdir)/ghc-pkg" "--global-conf=${T}/empty.conf"
45 elif ghc-cabal; then
46 echo '[]' > "${T}/empty.conf"
47 echo "$(ghc-libdir)/ghc-pkg.bin" "--global-conf=${T}/empty.conf"
48 else
30 echo $(ghc-libdir)/"ghc-pkg.bin" 49 echo "$(ghc-libdir)/ghc-pkg.bin"
50 fi
31} 51}
32 52
53# @FUNCTION: ghc-version
54# @DESCRIPTION:
33# returns the version of ghc 55# returns the version of ghc
56_GHC_VERSION_CACHE=""
34ghc-version() { 57ghc-version() {
35 $(ghc-getghc) --version | sed 's:^.*version ::' 58 if [[ -z "${_GHC_VERSION_CACHE}" ]]; then
59 _GHC_VERSION_CACHE="$($(ghc-getghc) --numeric-version)"
60 fi
61 echo "${_GHC_VERSION_CACHE}"
36} 62}
37 63
64# @FUNCTION: ghc-cabal
65# @DESCRIPTION:
66# this function can be used to determine if ghc itself
67# uses the Cabal package format; it has nothing to do
68# with the Cabal libraries ... ghc uses the Cabal package
69# format since version 6.4
70ghc-cabal() {
71 version_is_at_least "6.4" "$(ghc-version)"
72}
73
74# @FUNCTION: ghc-bestcabalversion
75# @DESCRIPTION:
76# return the best version of the Cabal library that is available
77ghc-bestcabalversion() {
78 local cabalversion
79 if ghc-cabal; then
80 # We ask portage, not ghc, so that we only pick up
81 # portage-installed cabal versions.
82 cabalversion="$(ghc-extractportageversion dev-haskell/cabal)"
83 echo "Cabal-${cabalversion}"
84 else
85 # older ghc's don't support package versioning
86 echo Cabal
87 fi
88}
89
90# @FUNCTION: ghc-sanecabal
91# @DESCRIPTION:
92# check if a standalone Cabal version is available for the
93# currently used ghc; takes minimal version of Cabal as
94# an optional argument
95ghc-sanecabal() {
96 local f
97 local version
98 if [[ -z "$1" ]]; then version="1.0.1"; else version="$1"; fi
99 for f in $(ghc-confdir)/cabal-*; do
100 [[ -f "${f}" ]] && version_is_at_least "${version}" "${f#*cabal-}" && return
101 done
102 return 1
103}
104
105# @FUNCTION: ghc-saneghc
106# @DESCRIPTION:
107# checks if ghc and ghc-bin are installed in the same version
108# (if they're both installed); if this is not the case, we
109# unfortunately cannot trust portage's dependency resolution
110ghc-saneghc() {
111 local ghcversion
112 local ghcbinversion
113 if [[ "${PN}" == "ghc" || "${PN}" == "ghc-bin" ]]; then
114 return
115 fi
116 if has_version dev-lang/ghc && has_version dev-lang/ghc-bin; then
117 ghcversion="$(ghc-extractportageversion dev-lang/ghc)"
118 ghcbinversion="$(ghc-extractportageversion dev-lang/ghc-bin)"
119 if [[ "${ghcversion}" != "${ghcbinversion}" ]]; then
120 return 1
121 fi
122 fi
123 return
124}
125
126# @FUNCTION: ghc-supports-shared-libraries
127# @DESCRIPTION:
128# checks if ghc is built with support for building
129# shared libraries (aka '-dynamic' option)
130ghc-supports-shared-libraries() {
131 $(ghc-getghc) --info | grep "RTS ways" | grep -q "dyn"
132}
133
134# @FUNCTION: ghc-extractportageversion
135# @DESCRIPTION:
136# extract the version of a portage-installed package
137ghc-extractportageversion() {
138 local pkg
139 local version
140 pkg="$(best_version $1)"
141 version="${pkg#$1-}"
142 version="${version%-r*}"
143 version="${version%_pre*}"
144 echo "${version}"
145}
146
147# @FUNCTION: ghc-libdir
148# @DESCRIPTION:
38# returns the library directory 149# returns the library directory
150_GHC_LIBDIR_CACHE=""
39ghc-libdir() { 151ghc-libdir() {
40 $(ghc-getghc) --print-libdir 152 if [[ -z "${_GHC_LIBDIR_CACHE}" ]]; then
153 _GHC_LIBDIR_CACHE="$($(ghc-getghc) --print-libdir)"
154 fi
155 echo "${_GHC_LIBDIR_CACHE}"
41} 156}
42 157
158# @FUNCTION: ghc-confdir
159# @DESCRIPTION:
43# returns the (Gentoo) library configuration directory 160# returns the (Gentoo) library configuration directory
44ghc-confdir() { 161ghc-confdir() {
45 echo $(ghc-libdir)/gentoo 162 echo "$(ghc-libdir)/gentoo"
46} 163}
47 164
165# @FUNCTION: ghc-localpkgconf
166# @DESCRIPTION:
48# returns the name of the local (package-specific) 167# returns the name of the local (package-specific)
49# package configuration file 168# package configuration file
50ghc-localpkgconf() { 169ghc-localpkgconf() {
51 echo "${PF}.conf" 170 echo "${PF}.conf"
52} 171}
53 172
173# @FUNCTION: ghc-makeghcilib
174# @DESCRIPTION:
175# make a ghci foo.o file from a libfoo.a file
176ghc-makeghcilib() {
177 local outfile
178 outfile="$(dirname $1)/$(basename $1 | sed 's:^lib\?\(.*\)\.a$:\1.o:')"
179 ld --relocatable --discard-all --output="${outfile}" --whole-archive "$1"
180}
181
182# @FUNCTION: ghc-makeghcilib
183# @DESCRIPTION:
184# tests if a ghc package exists
185ghc-package-exists() {
186 local describe_flag
187 if version_is_at_least "6.4" "$(ghc-version)"; then
188 describe_flag="describe"
189 else
190 describe_flag="--show-package"
191 fi
192
193 $(ghc-getghcpkg) "${describe_flag}" "$1" > /dev/null 2>&1
194}
195
196# @FUNCTION: ghc-setup-pkg
197# @DESCRIPTION:
54# creates an empty local (package-specific) package 198# creates a local (package-specific) package
55# configuration file 199# configuration file; the arguments should be
200# uninstalled package description files, each
201# containing a single package description; if
202# no arguments are given, the resulting file is
203# empty
56ghc-setup-pkg() { 204ghc-setup-pkg() {
205 local localpkgconf
206 localpkgconf="${S}/$(ghc-localpkgconf)"
57 echo '[]' > ${S}/$(ghc-localpkgconf) 207 echo '[]' > "${localpkgconf}"
208 local update_flag
209 if version_is_at_least "6.4" "$(ghc-version)"; then
210 update_flag="update -"
211 else
212 update_flag="--update-package"
213 fi
214 for pkg in $*; do
215 $(ghc-getghcpkgbin) -f "${localpkgconf}" ${update_flag} --force \
216 < "${pkg}" || die "failed to register ${pkg}"
217 done
58} 218}
59 219
220# @FUNCTION: ghc-fixlibpath
221# @DESCRIPTION:
222# fixes the library and import directories path
223# of the package configuration file
224ghc-fixlibpath() {
225 sed -i "s|$1|$(ghc-libdir)|g" "${S}/$(ghc-localpkgconf)"
226 if [[ -n "$2" ]]; then
227 sed -i "s|$2|$(ghc-libdir)/imports|g" "${S}/$(ghc-localpkgconf)"
228 fi
229}
230
231# @FUNCTION: ghc-install-pkg
232# @DESCRIPTION:
60# moves the local (package-specific) package configuration 233# moves the local (package-specific) package configuration
61# file to its final destination 234# file to its final destination
62ghc-install-pkg() { 235ghc-install-pkg() {
63 mkdir -p ${D}/$(ghc-confdir) 236 mkdir -p "${D}/$(ghc-confdir)"
64 cat ${S}/$(ghc-localpkgconf) | sed "s:${D}::" \ 237 cat "${S}/$(ghc-localpkgconf)" | sed "s|${D}||g" \
65 > ${D}/$(ghc-confdir)/$(ghc-localpkgconf) 238 > "${D}/$(ghc-confdir)/$(ghc-localpkgconf)"
66} 239}
67 240
241# @FUNCTION: ghc-register-pkg
242# @DESCRIPTION:
68# registers all packages in the local (package-specific) 243# registers all packages in the local (package-specific)
69# package configuration file 244# package configuration file
70ghc-register-pkg() { 245ghc-register-pkg() {
71 local localpkgconf 246 local localpkgconf
72 localpkgconf=$(ghc-confdir)/$1 247 localpkgconf="$(ghc-confdir)/$1"
248 local update_flag
249 local describe_flag
250 if version_is_at_least "6.4" "$(ghc-version)"; then
251 update_flag="update -"
252 describe_flag="describe"
253 else
254 update_flag="--update-package"
255 describe_flag="--show-package"
256 fi
257 if [[ -f "${localpkgconf}" ]]; then
73 for pkg in $(ghc-listpkg ${localpkgconf}); do 258 for pkg in $(ghc-listpkg "${localpkgconf}"); do
74 einfo "Registering ${pkg} ..." 259 ebegin "Registering ${pkg} "
75 $(ghc-getghcpkgbin) -f ${localpkgconf} -s ${pkg} \ 260 $(ghc-getghcpkgbin) -f "${localpkgconf}" "${describe_flag}" "${pkg}" \
76 | $(ghc-getghcpkg) -u --force 261 | $(ghc-getghcpkg) ${update_flag} --force > /dev/null
262 eend $?
77 done 263 done
264 fi
78} 265}
79 266
267# @FUNCTION: ghc-reregister
268# @DESCRIPTION:
80# re-adds all available .conf files to the global 269# re-adds all available .conf files to the global
81# package conf file, to be used on a ghc reinstallation 270# package conf file, to be used on a ghc reinstallation
82ghc-reregister() { 271ghc-reregister() {
83 einfo "Re-adding packages ..." 272 has "${EAPI:-0}" 0 1 2 && ! use prefix && EPREFIX=
84 ewarn "This may cause several warnings, but they should be harmless." 273 einfo "Re-adding packages (may cause several harmless warnings) ..."
85 pushd $(ghc-confdir) 274 PATH="${EPREFIX}/usr/bin:${PATH}" CONFDIR="$(ghc-confdir)"
275 if [ -d "${CONFDIR}" ]; then
276 pushd "${CONFDIR}" > /dev/null
86 for conf in *.conf; do 277 for conf in *.conf; do
87 einfo "Processing ${conf} ..." 278 PATH="${EPREFIX}/usr/bin:${PATH}" ghc-register-pkg "${conf}"
88 ghc-register-pkg ${conf}
89 done 279 done
90 popd 280 popd > /dev/null
281 fi
91} 282}
92 283
93# unregisters ... 284# @FUNCTION: ghc-unregister-pkg
285# @DESCRIPTION:
286# unregisters a package configuration file
287# protected are all packages that are still contained in
288# another package configuration file
94ghc-unregister-pkg() { 289ghc-unregister-pkg() {
95 local localpkgconf 290 local localpkgconf
291 local i
292 local pkg
293 local unregister_flag
96 localpkgconf=$(ghc-confdir)/$1 294 localpkgconf="$(ghc-confdir)/$1"
295
296 if version_is_at_least "6.4" "$(ghc-version)"; then
297 unregister_flag="unregister"
298 else
299 unregister_flag="--remove-package"
300 fi
301
302 if [[ -f "${localpkgconf}" ]]; then
97 for pkg in $(ghc-reverse "$(ghc-listpkg ${localpkgconf})"); do 303 for pkg in $(ghc-reverse "$(ghc-listpkg ${localpkgconf})"); do
304 if ! ghc-package-exists "${pkg}"; then
305 einfo "Package ${pkg} is not installed for ghc-$(ghc-version)."
306 else
98 einfo "Unregistering ${pkg} ..." 307 ebegin "Unregistering ${pkg} "
99 $(ghc-getghcpkg) -r ${pkg} --force 308 $(ghc-getghcpkg) "${unregister_flag}" "${pkg}" --force > /dev/null
309 eend $?
310 fi
100 done 311 done
312 fi
101} 313}
102 314
315# @FUNCTION: ghc-reverse
316# @DESCRIPTION:
103# help-function: reverse a list 317# help-function: reverse a list
104ghc-reverse() { 318ghc-reverse() {
105 local result 319 local result
320 local i
106 for i in $1; do 321 for i in $1; do
107 result="${i} ${result}" 322 result="${i} ${result}"
108 done 323 done
109 echo ${result} 324 echo "${result}"
110} 325}
111 326
327# @FUNCTION: ghc-elem
328# @DESCRIPTION:
329# help-function: element-check
330ghc-elem() {
331 local i
332 for i in $2; do
333 [[ "$1" == "${i}" ]] && return 0
334 done
335 return 1
336}
337
338# @FUNCTION: ghc-listpkg
339# @DESCRIPTION:
112# show the packages in a package configuration file 340# show the packages in a package configuration file
113ghc-listpkg() { 341ghc-listpkg() {
342 local ghcpkgcall
343 local i
344 local extra_flags
345 if version_is_at_least '6.12.3' "$(ghc-version)"; then
346 extra_flags="${extra_flags} -v0"
347 fi
348 for i in $*; do
349 if ghc-cabal; then
350 echo $($(ghc-getghcpkg) list ${extra_flags} -f "${i}") \
351 | sed \
352 -e "s|^.*${i}:\([^:]*\).*$|\1|" \
353 -e "s|/.*$||" \
354 -e "s|,| |g" -e "s|[(){}]||g"
355 else
114 [ -f $1 ] && echo $($(ghc-getghcpkgbin) -l -f $1) \ 356 echo $($(ghc-getghcpkgbin) -l -f "${i}") \
115 | cut -f2 -d':' \ 357 | cut -f2 -d':' \
116 | sed 's:,: :g' 358 | sed 's:,: :g'
359 fi
360 done
117} 361}
118 362
363# @FUNCTION: ghc-package_pkg_setup
364# @DESCRIPTION:
365# exported function: check if we have a consistent ghc installation
366ghc-package_pkg_setup() {
367 if ! ghc-saneghc; then
368 eerror "You have inconsistent versions of dev-lang/ghc and dev-lang/ghc-bin"
369 eerror "installed. Portage currently cannot work correctly with this setup."
370 eerror "There are several possibilities to work around this problem:"
371 eerror "(1) Up/downgrade ghc-bin to the same version as ghc."
372 eerror "(2) Unmerge ghc-bin."
373 eerror "(3) Unmerge ghc."
374 eerror "You probably want option 1 or 2."
375 die "Inconsistent versions of ghc and ghc-bin."
376 fi
377}
378
379# @FUNCTION: ghc-package_pkg_postinst
380# @DESCRIPTION:
119# exported function: registers the package-specific package 381# exported function: registers the package-specific package
120# configuration file 382# configuration file
121ghc-package_pkg_postinst() { 383ghc-package_pkg_postinst() {
122 ghc-register-pkg $(ghc-localpkgconf) 384 ghc-register-pkg "$(ghc-localpkgconf)"
123} 385}
124 386
387# @FUNCTION: ghc-package_pkg_prerm
388# @DESCRIPTION:
125# exported function: unregisters the package-specific 389# exported function: unregisters the package-specific package
126# package configuration file, under the condition that 390# configuration file; a package contained therein is unregistered
127# after removal, no other instances of the package will 391# only if it the same package is not also contained in another
128# be left (necessary check because ghc packages are not 392# package configuration file ...
129# versioned)
130ghc-package_pkg_prerm() { 393ghc-package_pkg_prerm() {
131 has_version "<${CATEGORY}/${PF}" || has_version ">${CATEGORY}/${PF}" \
132 || ghc-unregister-pkg $(ghc-localpkgconf) 394 ghc-unregister-pkg "$(ghc-localpkgconf)"
133} 395}
134 396
135EXPORT_FUNCTIONS pkg_postinst pkg_prerm 397EXPORT_FUNCTIONS pkg_setup pkg_postinst pkg_prerm

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